package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.dao.BrandDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.BrandEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.vo.BrandVo;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.CategoryBrandRelationDao;
import com.atguigu.gulimall.product.entity.CategoryBrandRelationEntity;
import com.atguigu.gulimall.product.service.CategoryBrandRelationService;


@Service("categoryBrandRelationService")
public class CategoryBrandRelationServiceImpl extends ServiceImpl<CategoryBrandRelationDao, CategoryBrandRelationEntity> implements CategoryBrandRelationService {

    @Autowired
    private CategoryDao categoryDao;

    @Autowired
    private BrandDao brandDao;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<CategoryBrandRelationEntity> page = this.page(
                new Query<CategoryBrandRelationEntity>().getPage(params),
                new QueryWrapper<CategoryBrandRelationEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveDetail(CategoryBrandRelationEntity categoryBrandRelation) {
        CategoryEntity categoryEntity = categoryDao.selectById(categoryBrandRelation.getCatelogId());
        BrandEntity brandEntity = brandDao.selectById(categoryBrandRelation.getBrandId());
        categoryBrandRelation.setCatelogName(categoryEntity.getName());
        categoryBrandRelation.setBrandName(brandEntity.getName());
        save(categoryBrandRelation);
    }

    @Override
    public void updateDetail(CategoryBrandRelationEntity categoryBrandRelation) {
        CategoryEntity categoryEntity = categoryDao.selectById(categoryBrandRelation.getCatelogId());
        BrandEntity brandEntity = brandDao.selectById(categoryBrandRelation.getBrandId());
        categoryBrandRelation.setCatelogName(categoryEntity.getName());
        categoryBrandRelation.setBrandName(brandEntity.getName());
        updateById(categoryBrandRelation);
    }

    @Override
    public void updateBrand(Long brandId, String name) {
        CategoryBrandRelationEntity categoryBrandRelationEntity = new CategoryBrandRelationEntity();
        categoryBrandRelationEntity.setBrandId(brandId);
        categoryBrandRelationEntity.setBrandName(name);
        this.update(categoryBrandRelationEntity, Wrappers.<CategoryBrandRelationEntity>lambdaQuery().eq(CategoryBrandRelationEntity::getBrandId, brandId));
    }

    @Override
    public void updateCategory(Long catId, String name) {
        CategoryBrandRelationEntity categoryBrandRelationEntity = new CategoryBrandRelationEntity();
        categoryBrandRelationEntity.setCatelogId(catId);
        categoryBrandRelationEntity.setCatelogName(name);
        this.update(categoryBrandRelationEntity, Wrappers.<CategoryBrandRelationEntity>lambdaQuery().eq(CategoryBrandRelationEntity::getCatelogId, catId));
    }

    @Override
    public List<BrandVo> getBrandsByCatId(Long catId) {
        List<BrandVo> collect = list(Wrappers.<CategoryBrandRelationEntity>lambdaQuery().eq(CategoryBrandRelationEntity::getCatelogId, catId)).stream().map((entity) -> {
            BrandEntity brandEntity = brandDao.selectById(entity.getBrandId());
            BrandVo brandVo = new BrandVo();
            brandVo.setBrandId(entity.getBrandId());
            brandVo.setBrandName(entity.getBrandName());
            return brandVo;
        }).collect(Collectors.toList());
        return collect;
    }

}